LEAFYは,アラビドopsisの花のメリステムのアイデンティティを制御しています
D Weigel1, J Alvarez, D R Smyth
1California Institute of Technology, Division of Biology 156-29, Pasadena 91125.
Cell
|May 29, 1992
まとめ
アラビドプシスのLEAFY遺伝子はAPETALA1と相互作用して,花のメリステムの発達を促進します. LEAFY RNAの発現は,主要な花の臓器同一性遺伝子の前に存在し,花の形成における重要な役割を強調しています.
科学分野:
- 植物発達生物学 植物発達生物学
- 分子遺伝学 分子遺伝学
- アラビドプシスの研究
背景:
- 花の発達は,花束のメリスタムから花のメリスタムへの移行から始まります.
- LEAFY遺伝子は,この移行を調節する上で重要な役割を果たしています.
研究 の 目的:
- アラビドプシス LEAFY遺伝子の機能を花のメリステム同一性において調査する.
- LEAFYと他の花の制御遺伝子の相互作用を理解するために.
主な方法:
- アラビドプシス LEAFY遺伝子の変異アレル解析.
- LEAFY遺伝子のクローン.
- LEAFYおよび花のホメオティック遺伝子のRNA発現分析 (AGAMOUS,APETALA3).
主要な成果:
- LEAFYはAPETALA1と相互作用して,花束から花のメリシステムへの移行を促進します.
- LEAFY RNAは,花のホメオティック遺伝子発現に先行する若い花のプリモルディアで発現します.
- LEAFYは,Antirrhinum majus FLORICAULA.のアラビドプシスホモログとして特定されています.
結論:
- LEAFYは,アラビドプシス (Arabidopsis) の花のメリスタムのアイデンティティの重要なレギュレータである.
- LEAFY/FLORICAULA機能の保存は,種間の花の移行のための保存されたメカニズムを示唆しています.
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